Watch



G.HENRY.

WATCH.

APPLICATION FILED 050.31, 1'919.

' Patented Mar. 29, 1921.

Jamar GEORGES HENRY, GF GENEVA, SWITZERLAND.

WATCH.

T 0 all whom it may concern:

Be it known that I, Gnonens nNRY, a citizen of the Swiss Republic, residing at Geneva, Switzerland, have invented new and useful improvements in lVatches, or" which the following is a specification.

The subject of the present invention is a watch the feature of which is that the movement is held in the case by means of at least one flexible collar located in the rim of the case and connected to the frame of the movement by means of lugs, the whole being arranged in such manner that by acting only on the movement the latter may be inserted and removed without removal of the collar.

This arrangement replaces with advan tage the case screws by the aid of which the movement is ordinarily fixed in the case.

The annexed drawing shows, by way of example, one embodim nt of the invention. Figure l is a front view partly in section, the rim being omitted. 'Fig. 2 is a section to enlarged scale on the line ABof Fig. l, the rim being shown. Fig. 3 is a detail seen from the side of Fig. 2.

The watch shown in the drawing has a case comprising the rim a and the bezel b. The watch movement is represented by its frame 0 to which the pendant 0 is secured. The movement is fitted in the rim a and rests with its supporting flange 0 on the flange of the rim. To hold the movement in the case there is provided the flexible collar formed by a blade spring (Z. This latter is located and held in the hollow portion formed in the flange of the rim a. For this purpose the blade spring (Z is formed with three lugs (Z each of which engages in a corresponding recess 6 formed in the flange of the rim (4. By this arrangement the blade spring (Z resting on the base of the rim can neither turn nor be moved upwardly within the rim; in fact its ends may bend outwardly and return to their position of equilibrium shown in the drawing, the recesses 6 being sufliciently deep to allow a certain amount of movement of the ends of the blade spring (Z.

In each of the lugs (Z' of the blade spring (Z is formed a hole f in which engages a pin 9 fixed on the periphery of the frame of the movement so that the movement is held in the case. However, the part of the pins 9 which enters the hole 7 in the blade spring (Z is roundedofl so that the movement Specification of Letters Patent.

Application filed December 31, 1919.

Patented Mar. 29, 1921. Serial No. 348,638.

may be removed from the rim a by exerting a slight pull on the pendant 0 and at the same time giving it a slight twist tending to rotate it on the pin located opposite the pendant, the other pins acting on the sides of the openings 7 in the nature of cams to cause the extreme ends of the blade spring (Z to bend or flex to a sufficient ex tent to permit the side pins to leave their respective openings in the spring; where.- upon the pin opposite the pendant is withdrawn out of its opening.

To return the movement the pin opposite the pendant is first placed in the corresponding opening in the blade spring (Z which has remained in place; then the movement is pushed into the rim a as a result of which the other pins snap into their respective openings f in the spring (Z owing to the flexibility of the latter.

The pins 9 are formed preferably of screws with rounded heads, or as shown in the drawing, or" studs fitted in the movement. These pins in lieu 01" being integral with the movement may be fitted in the col lar formed by the blade spring (Z the movement being formed on its periphery with corresponding recesses. Without departing from the principle of the invention the single collar (Z might be replaced by two or more collars, for example, by a collar for each pin and secured or held by any suitable means in the rim (4.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

1. The combination with a watch, comprising a case and a movement, of a flexible collar movably retained within the thickness of the case, and means carried by the movement and engaging the collar for normally retaining said movement in the case, said means being adapted to flex said collar and permit the removal of said movement from said case upon raising the movement and twisting the same relative to said case.

2. The combination with a watch c0m-- prising a case provided with an internal annular flange, said flange being provided with a plurality of recesses, and a movement adapted to be held within said case, of a blade spring forming a collar, said spring having a plurality of lugs movable within said recesses for retaining the collar in position in the case, each of said lugs having a recess therein, and a pin carried by said movement for engagement with each of said recesses for normally retaining the rnovement within the case said nins havin their 7 recess-engaging ends rounded whereby when recesses and flex said spring thei'eby to perniit removal of the movement from the case. '7 10 In testimony whereof I have signed my name to this specification.

E RGEsHENRY. 

